Patents by Inventor Andrew Hardie West

Andrew Hardie West has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Protocol conversion using channel associated signaling
    Patent number: 6151390
    Abstract: A method and apparatus for protocol conversion using channel associated signaling (CAS) is disclosed. A protocol conversion system is located logically between a first signaling system and a second signaling system, in which the first signaling system uses the Common Channel Signaling (CCS) protocol and the second signaling system uses CAS, which is incompatible with CCS. The protocol conversion system receives a first message from the first signaling system that conforms to the CCS protocol, converts the first message to one or more second messages that conform to the CAS protocol, and communicates the one or more second messages to the second signaling system, whereby a voice conversation is established between the first signaling system and the second signaling system. The protocol conversion system preferably comprises a universal protocol converter coupled to a CAS module.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: November 21, 2000
    Assignee: Cisco Technology, Inc.
    Inventors: Lev Volftsun, Clay H. Neighbors, Fred R. Rednor, Andrew Hardie West, David Auerbach, Adrian Richard Kingston